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Great Salt Lake Spiders

H and I rode our bikes out to the Great Salt Lake today along the frontage road that starts out by the airport and continues out to the marina.  Upon reaching the marina, we walked out to the point and were dumbstruck by the number of spiders that had holed up in the rocks making cobwebs and likely feasting on the large numbers of brine flies (Ephydridae) at the waters edge and growing quite large from the looks of it.  When I say there were lots of spiders, I mean, I have never in my life seen such an accumulation of spiders…  And they were *HUGE*.  It was horrifying really, like something right out of a movie.  If you cast your shadow just right, you could make hundreds of spiders all move and scramble for cover.

 

I think they are from the family Theridiidae or cobweb spiders (a huge family of spiders).  If anyone can refine the identification, I’d appreciate it. (UPDATE 08/29/11): That did not take long.  Melissa Hardy sent this link confirming the identity of these spiders as Neoscona crucifera.  Thanks Melissa!

 

Its hard to appreciate how many spiders and spider webs are there from this picture.  I was grabbing shots with my iPhone, so I did not have the flexibility of an SLR with a zoom or macro lens, but all the rocks out there were just covered with cob webs and thousands of spiders.

Categories: Small Life.

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5 Responses

  1. Love that first shot.

    LadyPebbles and I were out there a couple years ago. The number of spiders there is truly amazing. The ranger that worked at the marina told us what type they were, but it’s been long enough ago, I forgot. I do remember he said they were harmless to humans though. Definitely not the place for someone with arachnophobia.

  2. Out there two weeks ago and spiders everywhere. Truly amazing. Plenty of flies .they’ll be gone soon .

  3. Antelope Island has an annual spider festival dedicated to these every August. This year’s (2014) is Aug. 9th.



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Continuing the Discussion

  1. […] Its hard to appreciate the shocking density of spiders from these shots as all I had was an iPhone to make photos.  More discussion on Jonesblog here. […]